METHOD AND ROTARY DRUM INSTALLATION FOR VACUUM FOAMING OF REFRIGERATORS

摘要

Method and installation for vacuum foaming refrigerator cabinets (11), freezers and the like; the installation comprises a rotary drum (21) supporting a first and at least a second foaming jig (35), selectively actuated to move each foaming jig (35) along a circular path from a bottom position towards an underlying table (26) supporting the cabinets (11) to be closed into foaming jigs (35). A vacuum foaming chamber (41) comprises a bell (42) secured to the rotary drum (21) in correspondence with each foaming jig (35), and a closure cap (43) on a vertically movable table (26) to perform in a vacuum foaming chambers (41) in the bottom position of a bells (42) and the foaming jigs (35).